2009 skeeter 21 i class water/temp alarm

Yamaha 250 V Max HPDI series 2
I sucked up some mud backing up off the bank yesterday. Alarm sounded, and shows a blinking bar above the water temp icon on the dash. It blew the mud out and now the alarm is off and it’s flowing water fine, builds pressure up when you drive it. But, the flashing bar above water temp icon is still there. Any idea how to make that stop?

May have set afault and it needs to be cleared

Any idea how to reset it without a computer and software? I tried taking the negative battery cable off for a while but blinking light was still there....